Dynamo-electric machine.



PATEHTED MAR. 31, 1908.

B. SIEGFRIBD.

DYNAMO ELECTRIC MACHINE.

APPLIGATIOH FILED MAB. 3. 1906.

INVENTOR v Q 41,-4.4 (i

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(M305 FETEITL "KL. LIYMZ. WASHWGTON. D.

ROBERT SIEGFRIED, OF PITTSUURU, PENNSYLVANIA, ASSIGNOR TO WESTINGHOUSE ELEC- TRIO a MANUFACTURING conraxr, A conroip rron or PENNSYLVANIA.

DYNAMIC-ELECTRIC MACHINE.

no ssaaae.

To aZZ whom it may concern:

citizen of the United States, and a resident of Pittsburg, in the county of Allegheny. and State of Pennsylvania, have invented a new and useful Improvement in Dynamo-Electric Machines, of which the following is a specification.

My invention relates'to dynamo -electric machines and particularly to motors that are mounted upon and directly surround the driving axles-of locomotives or other vehicles.

The object of my invention is to provide a novel and improved supporting structure for suchmotors.

Electric motors that are employed for the pro ulsion of locomotives and other vehicles are 'requently mountedu pon quills or sleeves that surround the driving axles and are directly and resiliently connected thereto or to the driving wheels, the motors thus applied being, in general, adapted for slower speeds of operation than the more usual forms that are connected to the driving axles by means of speed-reducing gearing. The quills or sleeves have usually been provided with radial arms or annular flanges at one end, and resilient or other connections have been interposed between the same and the drivin wheels, such a structure permitting of corn venient assembling of the parts of the rotatable members upon the quills or sleeves. However, when large and powerful motors Specification of Letters Patent.

- Application filed March 3, 1906.

are to be mounted in this manner it will generally be found desirable to connect both ends of the quills to the adjacent driving wheels, and I accordingly propose to provide both ends of the quills with radial arms or flanges that they may be "'esiliently or otherwise connected to the driving wheels.

The magnetizable cores of the rotatable members of such dynamo-electric machines are usually and preferably composed of annular punchings or laminae that are mounted upon supporting structures carried by'the quills, and the commutator cylinders are frequently assembled upon sleeves that may also be mounted upon the supporting structures. In order to permit of ready application of the punchings and sleeves to the sup-' porting structures, especially when the inner diameters thereof are smaller than the outer diameters of the radial arms or flanges on the quills, I. further propose to construct the quills in two parts upon which the support- Patented March 31, 1908.

Serial No. 304,089.

ing structures may be mounted after the other parts have been assen'ibled thereon.

In another application, Serial No. 304,091 filed of even date herewith, I have shown and described a supporting structupe for the core punehings and the commutator cylinder that is formed integral with one section of the quill, it being immaterial in that case as well as in the present one, whether the external diameter of the supporting structure is greater or less than the external diameter of the radial arms or flanges. in another application, Serial "No. 304,090, filed of even date herewith is set forth still another structure in which the supporting device is formed integral with the quill and has a diameter that is slightly greater than'that of the radial arms or flanges, so that the punchings and Jmmutator cylinder may be slipped over the arms or flanges.

The single figure of the accompanying drawing is a'view, in transverse section, of a motor and the driving wheels of a vehicle that embody my invention.

Mounted u )on opposite ends of an axle 1, that may be the driving axle of a locomotive or other vehicle, are wheels 2 each of which is provided with a set of 'annularly arranged chambers 3. Surrounding the axle 1, between the driving wheels 2, is a quill that comprises two parts 4 and 5, the outer ends of which are provided with anhular flanges or radial arms 6, from which b'osses 7 project into the wheel chambers 3; The bosses are surrounded, within thechambers, by resilient,cushioning means, such as specially constructed helical springs 8 that form the subject-matter of an application, Serial No. 294,410, filed by me January 3, 1906.

Mounted upon and keyed to the inner ends of the quill sections 4 and 5, is a spider or sup-- porting structure 9 for a laminated, magnet-- izable core 10 and for a sleeve 11 upon which the segments of a commutator cylinder 12 are assembled and secured. A stationary member 13 for the motor, which in this case is the field magnet structure, is supported. by means of bearings 14 that surround portions ofthe quill sections that are located between the supporting structure for the armature and the radial arms or flanges. relative rotation between the parts being therebyi permit-ted. y

In assembling the rotatable member. the core punchings and the sleeve 11 for the com imitatorcylinder should be applied to the -)noi'ting structure bBfOIe it ism'ount'ed f 1 J upon the. quillsect1(.)ns,and consequentlyit is m n iaterial whether the outer diameter therc the punchin'gs and of the sleeve. v i; lthouglil have shown and lescribed the inW-ntion,as. applied to a dynamo-electric to be understood that it'may also be em played in connection with. alternating cur-' n o ing the axle and having flanges or radial arms at its extremities and bosses that p'r o ect tnereirom into the chambers in the wh els, of a-dynani o-electrlc machine comoture mounted. upon. the quill or sleeve. The eombimrtion 'with an axle, wheels mutated. thereon, having annular sets of chambers, and two-part sleeve or quillsurraiding the axleand having flanges or radial armsat its extremities and bosses that pr ct therefrom into the chambers in the W! i/UI'E: thereforthat is mounted upon the netor'than the flanges'or radial arms.

he combination with an axle-wlieels hereon and a transversely divided eve surrounding the axle andronneot-e'd tot re wheels, of a dynamo" hiue comprising a rotatable,

no. upon the quill or sleeve.

-i. mounted thereon and a transversely divided quill or sleeve surrounding the axle and pro- "sided with flanges or radial arms at its extremities and l'.'( ilient connections between the quill and the Wheels, oi a dynamo-elem trio imichine comprising a laminated, magnetiaahle core and a supportingstructure mounted upon the quill or sleeve.

5?. 'llhe combination with an. axle, wheels mo nted thereon and a transversely divided vided with flanges or radial arms at its extremities and resilient connections between the quill and the wheels, of a dynamo-elec trio machin' re and a supporting structure t is mounted upon the quill or is-greater or less than the inner diameter of machine of the (lHQC-t current type, I desire it embers, and a two-part sleeve or quill. sur

mg a rotatable member and a supporting els, of a dynamo-electric machine com- 3 prising arotatable member and a supporting or sleeve andis of smaller external di= I e timers core and a supporting structure The combination with an axle, wheels e surrounding the axle and proe comprising a laminated, naag-' the fiai gesorradial arms. v

6. The combination with an axle,"-wheelsmounted thereon, a transversely dividedsleeve and is of. less external 'diameter than i qluill or sleeve surrounding the axle between t s wheels and provided with flanges or ra-. dial arms at its extremities, and resilientconnections between the quill and thew-heels, of a dynamo-electric machine comprising a rotatable, magnetizable core and a supporting structure mounted upon the inner ends of the parts of the quillp 7. The combination with anaxle, wheels mounted thereon; a transversely divided qlpill or sleeve surrounding the axle between t e wheels; and provided with flanges or 'radial arms at its extremities, and'resilient connections between the quill and the Wheels, of a dynamo-electric machine comprising a rotatable, magnetizable core, a"removable commutator cylinder and a supporting structure mounted upon the innerends of the parts of the quill.

8. The combination With-an axle, wheels mounted thereon, a transversel divided quill or sleeve surrounding the ax e between the wheels and providedwith flanges or radial arms at its extremities, and resilient connections between the quill and the wheels, of a dynamo-electric machine, comprising a rotatable, magnetizable core, a removable commutator cylinder and a supporting'struc ture therefor that is mounted upon the inner ends of the parts of the quill and is of'less external diameter than the flanges or radial arms. I

9. The combination with an axle and wheels mounted thereon, of quills or sleeves surrounding the axle between the Wheels, resilient connections between the outer-ends of the quills and the Wheels, and a dynamoelectric machine that is mounted upon the quills. 10. wheels mounted thereon, of quills-or. sleeves surrounding the axle between the Wl168lS,

resilient connections between the quills and the wheels, and a dynamo-electric machine mounted upon the inner ends of the quills.

11. The combination with an axle and wheels mounted thereon having annular sets of chambers, of quills or sleeves ,surround ing the axle between the wheels and provided with flanges or radial arms at their outer ends The .combinationwith an axle and and with bosses that project therefrom into the wheelchambers, and a dynamoselectric machine mounted upon the inner ends ofthe quills.

12. The combinationwith an axle and wheeis mounted thereon having annular sets of chambers, of quills or sleevesurroundmg the axle between the wheels and provided with flanges or 'radialarms'at their outer ends -the wheel chambers, resilient cushioning chambers, and. dynamo-electricmachln s and with bosses that project therefrom into means surmundin the bOSSES Within the mounted upo :11 the inner ends cf the quills.

13(11'1 a (if; mine -99 .l'naclzino, the wmbination with. astutmrmry s.- ll rotatable member, of a trmlsversely alluded quill. or sleeve upon which members are muunted.

. l cqThe e01, whfiels mmmtea brie machine located between the Wheels and a SUEJPOZl'lIlg stfuctul'e therefor that loosely surround the axle and 1's resiliently c011-- 15 x'lectedto (the Wheels In testimony whereof, I have herezunto :subscribed my name this 23rd (lay of February, 19%.

ROBERT SIEGFRIED; 

